An Extension to Traditional Play Fair Cryptographic Method

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Provided by: International Journal of Computer Applications
Topic: Security
Format: PDF
"The theme of research is to provide security for the data that contains alphanumeric values during its transmission. The best known multiple letter encryption cipher is the play fair, which treats the plain text as single units and translates these units into cipher text. It is highly difficult to the intruder to understand or to decrypt the cipher text. In this paper, the authors discussed about the existing play fair algorithm, its merits and demerits. The existing play fair algorithm is based on the use of a 5 X 5 matrix of letters constructed using a keyword."
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